> ## Documentation Index
> Fetch the complete documentation index at: https://bun.manicule.dev/llms.txt
> Use this file to discover all available pages before exploring further.
> For every page in one file, fetch https://bun.manicule.dev/llms-full.txt (large).
> To search and read these docs as tools, connect the MCP server at https://bun.manicule.dev/api/mcp.
> Every agent surface: https://bun.manicule.dev/.well-known/llms-manifest.json

# Convert a Uint8Array to a Blob (/guides/binary/typedarray-to-blob)

<!-- agent-signals: reading_time_min: 1 · est_tokens: 104 · updated: 2026-08-02 -->
Related: [Convert an ArrayBuffer to a string](/guides/binary/arraybuffer-to-string.md), [Convert an ArrayBuffer to a Buffer](/guides/binary/arraybuffer-to-buffer.md), [Convert an ArrayBuffer to a Blob](/guides/binary/arraybuffer-to-blob.md), [Convert an ArrayBuffer to an array of numbers](/guides/binary/arraybuffer-to-array.md), [Convert an ArrayBuffer to a Uint8Array](/guides/binary/arraybuffer-to-typedarray.md), [Convert a Buffer to a string](/guides/binary/buffer-to-string.md)

A [`Blob`](https://developer.mozilla.org/en-US/docs/Web/API/Blob) can be constructed from an array of "chunks", where each chunk is a string, binary data structure (including `Uint8Array`), or another `Blob`.

```ts
const arr = new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0x6f]);
const blob = new Blob([arr]);
console.log(await blob.text());
// => "hello"
```

***

See [Binary Data](/runtime/binary-data#conversion).